zack schrieb:

I am looking for multi-channel audio encoder/decoders (e.g. AAC, A52, vorbis, AC3 etc.) suitable for implementation as a pd extern, or better yet, already implemented in pd and I just haven't heard about it. Would anyone have any leads on

There are objects for recording / playing Ogg Vorbis files available from http://www.akustische-kunst.org/puredata/pdogg/ The latest versions of oggread~ and oggwrite~ support multichannel files.

Olaf